<template>
  <div>
    <el-card>
      <el-form :inline="true" :model="searchForm">
        <el-form-item label="年级">
          <el-input
            v-model="searchForm.grade"
            placeholder="请输入"
            clearable
          ></el-input>
        </el-form-item>
        <el-form-item label="班级">
          <el-input
            v-model="searchForm.classNumber"
            placeholder="请输入"
            clearable
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="getData()">查询</el-button>
        </el-form-item>
        <el-form-item v-if="userInfo.type==='2'">
          <el-button type="primary" @click="openDialog('添加班级')">添加班级</el-button>
        </el-form-item>
      </el-form>
      <!-- 数据列表-->
      <el-table
        :data="tableData.slice((currentPage-1)*PageSize,currentPage*PageSize)"
        border
        class="table"
        ref="multipleTable"
        highlight-current-row
      >
        <el-table-column
          prop="id"
          label="编号"
          min-width="140"
        ></el-table-column>
        <el-table-column
          prop="grade"
          label="年级"
          min-width="140"
        ></el-table-column>
        <el-table-column
          prop="classNumber"
          label="班级"
          min-width="140"
        ></el-table-column>

        <el-table-column
          v-if="userInfo.type==='2'"
          label="操作"
          min-width="150"
          align="center"
          fixed="right"
        >
          <template slot-scope="scope">
            <el-button
              type="text"
              icon="el-icon-edit"
              @click="openDialog('编辑班级', scope.row)"
              style="margin-right:5px"
              >编辑
            </el-button>
            <el-popconfirm
                confirm-button-text='确定'
                cancel-button-text='取消'
                icon="el-icon-info"
                @confirm="deleteUser(scope.row)"
                icon-color="red"
                title="确定删除该班级信息吗？"
                >
                <el-button
              type="text"
              slot="reference"
              icon="el-icon-delete"
              class="red"
              >删除
            </el-button>
            </el-popconfirm>
            
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <div class="pagination">
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="currentPage"
          :page-sizes="pageSizes"
          :page-size="PageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="tableData.length"
        >
        </el-pagination>
      </div>
      <!--添加/修改 模态框-->
      <el-dialog
        :title="dialogTitle"
        :visible.sync="dialogFormVisible"
        width="500px"
      >
        <el-form
          :model="editClassinfoForm"
          ref="editClassinfoForm"
          :rules="userClassRules"
          label-width="120px"
          :inline="true"
        >
          <el-form-item label="年级:">
            <el-input v-model="editClassinfoForm.grade" ></el-input>
          </el-form-item>
          <el-form-item label="班级:">
            <el-input v-model="editClassinfoForm.classNumber" ></el-input>
          </el-form-item>
        </el-form>
        <div slot="footer" class="dialog-footer">
          <el-button @click="dialogFormVisible = false">取 消</el-button>
          <el-button
            type="primary"
            @click="addClass"
            v-if="dialogTitle === '添加班级'"
            >提 交</el-button
          >
          <el-button
            type="primary"
            @click="saveEdit"
            v-if="dialogTitle === '编辑班级'"
            >保 存</el-button
          >
        </div>
      </el-dialog>
    </el-card>
  </div>
</template>
<script>
import webservice from '../../../api/webservice'
export default {
  data() {
    return {
      tableData: [],
      // 默认显示第几页
        currentPage: 1,
        // 个数选择器（可修改）
        pageSizes: [10, 20,30,40,50],
        // 默认每页显示的条数（可修改）
        PageSize: 10,
      searchForm: {}, //查询对象
      dialogFormVisible: false, //添加或修改的模态框标识
      dialogTitle: "",
      editClassinfoForm: {}, //编辑人员信息的表单信息
      userClassRules:{
          name: [
                { required: true, message: '请输入昵称', trigger: 'blur' }
            ]
      },
      userInfo:{}
    };
  },
  mounted() {
    this.userInfo = JSON.parse(sessionStorage.getItem('userInfo'))
    this.getData();
  },
  methods: {
    // 分页
    // 每页显示的条数
    handleSizeChange(val) {
        // 改变每页显示的条数 
        this.PageSize = val
        console.log(this.pageSizes)
        // 注意：在改变每页显示的条数时，要将页码显示到第一页
        this.currentPage = 1
    },
    // 显示第几页
    handleCurrentChange(val) {
        // 改变默认的页数
        this.currentPage = val
    },
    getData() {
      let _param = {
        classNumber: this.searchForm.classNumber,
        grade: this.searchForm.grade,
      };
       let _params = JSON.stringify(_param)
      webservice.HttpPost("/api/clazz/selectClazzList", _params, (data) => {
        if (data.code === 200) {
          this.tableData = data.data;
        } else {
          this.$message.error({
            message: data.message,
            showClose: true,
            duration: 1000,
          });
        }
      });
    },
    //打开 添加/编辑 模态框
    openDialog(flag, row) {
      this.dialogTitle = flag;
      if( this.dialogTitle==='编辑班级'){
        this.editClassinfoForm = JSON.parse(JSON.stringify(row));
      }else{
        this.editClassinfoForm = {};
      }
      this.dialogFormVisible = true;
    },
    //添加
    addClass() {
      let _param = {
        classNumber:this.editClassinfoForm.classNumber,
        grade:this.editClassinfoForm.grade,
      };
      let _params = JSON.stringify(_param)
      webservice.HttpPost("/api/clazz/insertClazz", _params, (data) => {
        if (data.code === 200) {
          this.dialogFormVisible = false;
          this.getData()
          this.$message.success({
            message: '添加成功！',
            showClose: true,
            duration: 1000,
          });
        } else {
          this.dialogFormVisible = false;
          this.$message.error({
            message: data.message,
            showClose: true,
            duration: 1000,
          });
        }
      });
    },
    //修改
    saveEdit() {
      let _param = {
        id:this.editClassinfoForm.id,
        classNumber:this.editClassinfoForm.classNumber,
        grade:this.editClassinfoForm.grade,
      };
      let _params = JSON.stringify(_param)
      webservice.HttpPost("/api/clazz/updateClazz", _params, (data) => {
        if (data.code === 200) {
          this.dialogFormVisible = false;
          this.getData()
          this.$message.success({
            message: '修改成功！',
            showClose: true,
            duration: 1000,
          });
        } else {
          this.dialogFormVisible = false;
          this.$message.error({
            message: data.message,
            showClose: true,
            duration: 1000,
          });
        }
      });
    },
    //删除
    deleteUser(row){
      let _param = {
        id: row.id
      };
      let _params = JSON.stringify(_param)
      webservice.HttpPost("/api/clazz/deleteClazz", _params, (data) => {
        if (data.code === 200) {
            this.getData()
            this.$message.success({
            message: '删除成功！',
            showClose: true,
            duration: 1000,
          });
        } else {
          this.$message.error({
            message: data.message,
            showClose: true,
            duration: 1000,
          });
        }
      });
    },
  },
};
</script>